Well-drilling apparatus.



J. L. DYSON.

WELL DRILLING APPARATUS.

APPLICATION FILED NOV. 13. 1913.

Patented July 27, 1915.

J'GSEPH L. DYSON, OF LOYALTON, CALIFORNIA.

WELL-DRILLING APPARATUS.

Application filed November 13, 1918.

To all whom it may concern:

Be it known that I, .lossrn L. DYSON, acitizen oi the United States, anda resident of Loyalton, in the county of Sierra and State ofCz'ilifornia, have invented an improvement in \VelLDx-illing Apparatus,of which the following is a specification.

My present invention relates to drill turners and more particularly tothat class of automatic arrangements for this purpose utilized inconnection with well drilling operations. and my object is to provide asimple and inexpensive attaclunent whereby the desired result may beaccomplished in a novel and eil'ective manner and through the action ofthe trip rod and the impact of the drill upon each strokethereof.

In the accompanying drawing which illustrates my invention, Figure l isa side elevation illustrating my invention. Fig. 2 is a. detailhorizontal section taken substantially on the line 22 of Fig. 1.

Referring now to these figures, A indicates upright surface guides uponwhich are slidably disposed the vertical tubular ends I) of a cross headB, acting as a guide for the movement of the drill C, the rod of thelatter of which is connected to the lower end of a. Water swivel D, tothe upper end of which water swivel is connected the lower end of aswivel rod E, As seen in Fig. 1, the central portion of the cross headguide B is dc.- pressed in substantially U-shaped form and through thebase I) of which depression is loosely extended the upper extremities ofthe swivel rod E, having a nut or head 6 above the base 6' of thedepression and being provided with a spring e coiled thereaboutandcompressed between the lower surface of the base I) of the depressionand a collar e secured thereon, it being thus apparent that upon impactof the drill within the base of the opening being drilled,relative'movemcnt of the drill including the swivel rod E, will takeplace with respect to the cross head guide B, under tension and control.of the spring 6'.

To the angular sides I) of the central depression of the cross headguide- B are pivotally connected the upper inner ends of curved levers Fand F, the upper inner portions of which, adjacent their pivots, extendalong side one another within the central depression of the, cross headguide and are engaged by a yoke or clevis g to which the trip rope G isconnected.

Specification of Letters l'fatent,

Patented July 2'7, 1915.

Serial No, 800,766.

The lower outer'ends of the levers F and I F are laterally oil-set sothat they depend and rigidly connected. and extend respectively aboveand below a ratchet Wheel'I mounted therebetween and secured upon theswivel rod E, the frame carrying a pair of spring controlled pivotedpawls It, in en.- gzagement with the teeth of the ratchet wheel I uponrelatively opposite sides thereof.-

The lower outer ends of the levers F or F before mentioned are providedwith pivoted links f and f, projecting toward relatively opposite endsof the frame H and connected to the respectively adjacent sides thereofby means of lugs It projecting from the frame, It will thus be seen thatthe vertical movement of the trip rope G which is usually operated froma derrick will, through the loose connection of the lower end of thisrope to points intermediate the ends of lovers F and F curved asdescribed, tend to cause .outward movement of the lower ends of theselovers in relatively opposite directions and this movement, through thelinks f and f will be communicated to the frame H so as to swing thevlatter horizontally upr'm the swivel shaft E in the direction of thearrow shown in Fig. In this movement it will he noted that the pa-wls bwill be in positive engagement with the teeth of the ratchet wheel I andwill consequently cause slight rotative movement of the ratchetvwheelandthe swivel rod E to which the ratchet Wheel is connected, effectingsimilar rotative movement of the drill C through the water swivel D.Thus it will be seen that upon each upward movement of the drill G, aslight rotative movement will be imparted therei and it will be furtherseen that upon each descending stroke of the drill, the frame H willgiven a slight rotative movement in the neverse directionto enable itsowls h to seek; new hold upon the ratchet weel I. This lat- ;termovement is accomplished by virtue ofthe relative movement of the swivelrod E with, respect to the cross guide B, such movement of the swivelrod causin similar vertical movement of the frame If at thesame timedrawing the lower ends of the levers F and F inwar dl y an'd swingingthe frame H back to its original position. In this manner oscillatorymovement is communicated to the frame H during each complete stroke ofthe drill C and this oscillatory movement is transmitted to the drillrod in such a manner as to effect a step by step rotation of the latter.

I claim 1; The combination of a cross head having guided movement andprovided with a centrally depressed portion having angular sides, aswivel rod the upper end of which is loosely extended through the baseof the depressed portion of the cross head whereby-to permit of limitedrelative movement therebetween, a spring carried by the swivel rodwhereby to cushion the relative movement, :1, horizontal frame centrallyjournaled on the swivel-rod and provided with a pair of springcontrolled pawls, a ratchet wheel secured upon the swivel rod within theframe and with which the pawls are en- .gaged, a pair of curved levershaving their upper inner ends lapped within the depending portion of thecross head and pivotally connected at their extremities to relatively.oppo'site sides of said depending portion,

the lower outer ends of said levers extending up'on relatively oppositesides, and ad jac'ent'relatively opposite ends,-of the-frame,

'links pivotally connected to the lower por- 4 tions of the levers,saidlinks extending in relatively opposite directions and also pivotallyconnected to portions of the frame, a

' yoke or clevis'loosely engaging the upper lapped portions of thelevers, a trip rope connected to the yoke or clevis, and a drill rodconnected to the lower end of the swivel rod, all for the purposedescribed.

2; The combination of a swivel rod to the lower end of which the drillis connected, a cross head having a vertical guided movement and withwhich the upper end of the swivel rod is vertically movably connected, aframe mounted to oscillate on the swivel rod, a pawl and ratchetconnection between the frame and swivel rod, levers pivotally connectedat their upper ends to the cross head and having linked connections attheir lower ends with relatively opposite sides, and adjacent relativelyopposite ends, of the oscillatory frame, and a trip rope havingconnection with the said levers intermediate their ends.

3. The combination of a swivel rod to the lower end of which the drillrod is connected, a horizontal frame mounted to oscillate on the swivelrod and having a pawl and ratchet connection with the said swivel rod, apair of lovers having oppositely extending links at their lower endsconnected to relatively opposite sides of the frame and having inwardlycurved and lapping upper ends, a vertically movable guide member withwhich the said upper ends of the levers are pivotally connected at theirextremities, a yoke or elevis embracing the lapped upper portions of thelevers, a trip rope connected to the yoke or clevis, and a movableconnection between the support and the upper end of the swivel rod, allfor the purpose described.

4. The combination of a vertically movable cross head, a swivel rodhaving a vertically movable connection with the cross head, anoscillatory frame mounted on, and

having a pawl and ratchet connection with,

the said swivel rod, levers pivoted at their upper ends to the crosshead and having" of the latter, all for the purpose described.

JOSEPH L. DYSON.

Witnesses:

Josnrn Dyson, W. A. WILTSE.

